/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-05 19:53:14,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 19:53:14,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 19:53:15,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 19:53:15,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-05 19:53:15,094 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 19:53:15,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 19:53:15,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 19:53:15,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 19:53:15,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 19:53:15,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 19:53:15,097 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 19:53:15,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 19:53:15,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 19:53:15,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 19:53:15,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 19:53:15,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 19:53:15,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:53:15,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 19:53:15,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 19:53:15,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 19:53:15,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 19:53:15,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 19:53:15,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 19:53:15,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 19:53:15,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 19:53:15,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 19:53:15,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 19:53:15,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 19:53:15,457 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 19:53:15,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-05 19:53:15,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7183cac/e3c7707675584c88a2604440a935bdd4/FLAG1a5adf804 [2021-06-05 19:53:16,004 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 19:53:16,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2021-06-05 19:53:16,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7183cac/e3c7707675584c88a2604440a935bdd4/FLAG1a5adf804 [2021-06-05 19:53:16,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b7183cac/e3c7707675584c88a2604440a935bdd4 [2021-06-05 19:53:16,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 19:53:16,487 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 19:53:16,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 19:53:16,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 19:53:16,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 19:53:16,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:53:16" (1/1) ... [2021-06-05 19:53:16,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d3b5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:16, skipping insertion in model container [2021-06-05 19:53:16,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 07:53:16" (1/1) ... [2021-06-05 19:53:16,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 19:53:16,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 19:53:16,751 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-05 19:53:16,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:53:16,936 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 19:53:16,946 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i[949,962] [2021-06-05 19:53:16,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 19:53:17,060 INFO L208 MainTranslator]: Completed translation [2021-06-05 19:53:17,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17 WrapperNode [2021-06-05 19:53:17,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 19:53:17,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 19:53:17,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 19:53:17,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 19:53:17,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 19:53:17,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 19:53:17,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 19:53:17,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 19:53:17,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... [2021-06-05 19:53:17,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 19:53:17,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 19:53:17,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 19:53:17,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 19:53:17,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 19:53:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 19:53:17,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 19:53:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 19:53:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 19:53:17,250 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 19:53:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 19:53:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 19:53:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 19:53:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 19:53:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 19:53:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-05 19:53:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-05 19:53:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 19:53:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 19:53:17,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 19:53:17,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 19:53:17,254 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 19:53:17,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 19:53:17,645 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 19:53:17,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:53:17 BoogieIcfgContainer [2021-06-05 19:53:17,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 19:53:17,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 19:53:17,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 19:53:17,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 19:53:17,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 07:53:16" (1/3) ... [2021-06-05 19:53:17,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd83054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:53:17, skipping insertion in model container [2021-06-05 19:53:17,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 07:53:17" (2/3) ... [2021-06-05 19:53:17,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd83054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 07:53:17, skipping insertion in model container [2021-06-05 19:53:17,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 07:53:17" (3/3) ... [2021-06-05 19:53:17,654 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2021-06-05 19:53:17,659 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 19:53:17,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 19:53:17,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 19:53:17,660 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 19:53:17,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,705 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,706 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,707 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,708 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,708 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,708 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,708 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,709 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,710 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,710 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,711 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,711 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,711 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,712 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,712 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,713 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,714 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,715 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,716 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,721 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,722 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,722 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,726 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,726 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,727 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,727 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,729 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,730 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,732 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 19:53:17,734 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 19:53:17,755 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 19:53:17,781 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 19:53:17,781 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 19:53:17,781 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 19:53:17,781 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 19:53:17,781 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 19:53:17,782 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 19:53:17,782 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 19:53:17,782 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-05 19:53:17,795 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 108 places, 97 transitions, 214 flow [2021-06-05 19:53:23,262 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:23,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-06-05 19:53:23,485 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:23,486 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:23,487 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:23,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1675625032, now seen corresponding path program 1 times [2021-06-05 19:53:23,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:23,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147671890] [2021-06-05 19:53:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:23,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:23,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:23,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147671890] [2021-06-05 19:53:23,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147671890] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:23,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:23,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:53:23,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221925122] [2021-06-05 19:53:24,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:53:24,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:24,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:53:24,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:53:24,096 INFO L87 Difference]: Start difference. First operand has 51814 states, 51812 states have (on average 4.368717671581873) internal successors, (226352), 51813 states have internal predecessors, (226352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:25,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:25,900 INFO L93 Difference]: Finished difference Result 115618 states and 491448 transitions. [2021-06-05 19:53:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:53:25,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-06-05 19:53:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:26,195 INFO L225 Difference]: With dead ends: 115618 [2021-06-05 19:53:26,196 INFO L226 Difference]: Without dead ends: 36814 [2021-06-05 19:53:26,197 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 268.1ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36814 states. [2021-06-05 19:53:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36814 to 30478. [2021-06-05 19:53:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30478 states, 30477 states have (on average 4.128884076516718) internal successors, (125836), 30477 states have internal predecessors, (125836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:28,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 125836 transitions. [2021-06-05 19:53:28,077 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 125836 transitions. Word has length 55 [2021-06-05 19:53:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:28,079 INFO L482 AbstractCegarLoop]: Abstraction has 30478 states and 125836 transitions. [2021-06-05 19:53:28,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 125836 transitions. [2021-06-05 19:53:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 19:53:28,146 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:28,146 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:28,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 19:53:28,147 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:28,149 INFO L82 PathProgramCache]: Analyzing trace with hash -728552423, now seen corresponding path program 1 times [2021-06-05 19:53:28,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:28,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922118405] [2021-06-05 19:53:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:28,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:28,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922118405] [2021-06-05 19:53:28,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922118405] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:28,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:28,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:53:28,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288763515] [2021-06-05 19:53:28,295 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:53:28,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:28,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:53:28,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:53:28,296 INFO L87 Difference]: Start difference. First operand 30478 states and 125836 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:29,195 INFO L93 Difference]: Finished difference Result 45766 states and 187560 transitions. [2021-06-05 19:53:29,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:53:29,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 19:53:29,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:29,428 INFO L225 Difference]: With dead ends: 45766 [2021-06-05 19:53:29,428 INFO L226 Difference]: Without dead ends: 36694 [2021-06-05 19:53:29,429 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 226.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:29,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36694 states. [2021-06-05 19:53:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36694 to 29230. [2021-06-05 19:53:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29230 states, 29229 states have (on average 4.115022751377057) internal successors, (120278), 29229 states have internal predecessors, (120278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29230 states to 29230 states and 120278 transitions. [2021-06-05 19:53:30,747 INFO L78 Accepts]: Start accepts. Automaton has 29230 states and 120278 transitions. Word has length 57 [2021-06-05 19:53:30,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:30,748 INFO L482 AbstractCegarLoop]: Abstraction has 29230 states and 120278 transitions. [2021-06-05 19:53:30,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:30,748 INFO L276 IsEmpty]: Start isEmpty. Operand 29230 states and 120278 transitions. [2021-06-05 19:53:30,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 19:53:30,830 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:30,830 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:30,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 19:53:30,830 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:30,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:30,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1714446202, now seen corresponding path program 1 times [2021-06-05 19:53:30,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:30,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080467320] [2021-06-05 19:53:30,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:31,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:31,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080467320] [2021-06-05 19:53:31,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080467320] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:31,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:31,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:53:31,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372270827] [2021-06-05 19:53:31,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:53:31,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:31,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:53:31,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:53:31,265 INFO L87 Difference]: Start difference. First operand 29230 states and 120278 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:31,711 INFO L93 Difference]: Finished difference Result 50986 states and 207167 transitions. [2021-06-05 19:53:31,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 19:53:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 19:53:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:31,818 INFO L225 Difference]: With dead ends: 50986 [2021-06-05 19:53:31,818 INFO L226 Difference]: Without dead ends: 29028 [2021-06-05 19:53:31,819 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 405.3ms TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29028 states. [2021-06-05 19:53:32,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29028 to 24052. [2021-06-05 19:53:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24052 states, 24051 states have (on average 4.042576192258118) internal successors, (97228), 24051 states have internal predecessors, (97228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24052 states to 24052 states and 97228 transitions. [2021-06-05 19:53:32,888 INFO L78 Accepts]: Start accepts. Automaton has 24052 states and 97228 transitions. Word has length 59 [2021-06-05 19:53:32,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:32,889 INFO L482 AbstractCegarLoop]: Abstraction has 24052 states and 97228 transitions. [2021-06-05 19:53:32,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 24052 states and 97228 transitions. [2021-06-05 19:53:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-06-05 19:53:32,930 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:32,930 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:32,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 19:53:32,931 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:32,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:32,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1714578911, now seen corresponding path program 1 times [2021-06-05 19:53:32,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:32,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536244897] [2021-06-05 19:53:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:33,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:33,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536244897] [2021-06-05 19:53:33,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536244897] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:33,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:33,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:53:33,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612550964] [2021-06-05 19:53:33,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:53:33,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:33,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:53:33,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:53:33,024 INFO L87 Difference]: Start difference. First operand 24052 states and 97228 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:33,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:33,580 INFO L93 Difference]: Finished difference Result 25332 states and 102012 transitions. [2021-06-05 19:53:33,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:53:33,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-06-05 19:53:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:33,717 INFO L225 Difference]: With dead ends: 25332 [2021-06-05 19:53:33,717 INFO L226 Difference]: Without dead ends: 23092 [2021-06-05 19:53:33,718 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 99.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:53:33,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23092 states. [2021-06-05 19:53:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23092 to 22068. [2021-06-05 19:53:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22068 states, 22067 states have (on average 4.027552453890425) internal successors, (88876), 22067 states have internal predecessors, (88876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:34,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22068 states to 22068 states and 88876 transitions. [2021-06-05 19:53:34,268 INFO L78 Accepts]: Start accepts. Automaton has 22068 states and 88876 transitions. Word has length 61 [2021-06-05 19:53:34,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:34,269 INFO L482 AbstractCegarLoop]: Abstraction has 22068 states and 88876 transitions. [2021-06-05 19:53:34,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:34,269 INFO L276 IsEmpty]: Start isEmpty. Operand 22068 states and 88876 transitions. [2021-06-05 19:53:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 19:53:34,304 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:34,304 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:34,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 19:53:34,304 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:34,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:34,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1749629959, now seen corresponding path program 1 times [2021-06-05 19:53:34,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:34,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738425541] [2021-06-05 19:53:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:34,424 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:34,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738425541] [2021-06-05 19:53:34,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738425541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:34,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:34,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:53:34,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876833580] [2021-06-05 19:53:34,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:53:34,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:34,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:53:34,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:53:34,426 INFO L87 Difference]: Start difference. First operand 22068 states and 88876 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:35,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:35,133 INFO L93 Difference]: Finished difference Result 46036 states and 181948 transitions. [2021-06-05 19:53:35,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 19:53:35,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 19:53:35,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:35,188 INFO L225 Difference]: With dead ends: 46036 [2021-06-05 19:53:35,188 INFO L226 Difference]: Without dead ends: 21276 [2021-06-05 19:53:35,189 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 180.2ms TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2021-06-05 19:53:35,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21276 states. [2021-06-05 19:53:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21276 to 16412. [2021-06-05 19:53:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16412 states, 16411 states have (on average 3.888245688867223) internal successors, (63810), 16411 states have internal predecessors, (63810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16412 states to 16412 states and 63810 transitions. [2021-06-05 19:53:35,875 INFO L78 Accepts]: Start accepts. Automaton has 16412 states and 63810 transitions. Word has length 62 [2021-06-05 19:53:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:35,875 INFO L482 AbstractCegarLoop]: Abstraction has 16412 states and 63810 transitions. [2021-06-05 19:53:35,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:35,875 INFO L276 IsEmpty]: Start isEmpty. Operand 16412 states and 63810 transitions. [2021-06-05 19:53:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-06-05 19:53:35,901 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:35,901 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:35,901 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 19:53:35,901 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:35,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:35,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1358272108, now seen corresponding path program 1 times [2021-06-05 19:53:35,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:35,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251312522] [2021-06-05 19:53:35,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:35,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:35,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251312522] [2021-06-05 19:53:35,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251312522] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:35,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:35,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:53:35,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816407877] [2021-06-05 19:53:35,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:53:35,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:35,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:53:35,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:53:35,987 INFO L87 Difference]: Start difference. First operand 16412 states and 63810 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:36,279 INFO L93 Difference]: Finished difference Result 25564 states and 98786 transitions. [2021-06-05 19:53:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 19:53:36,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-06-05 19:53:36,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:36,339 INFO L225 Difference]: With dead ends: 25564 [2021-06-05 19:53:36,339 INFO L226 Difference]: Without dead ends: 19804 [2021-06-05 19:53:36,339 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19804 states. [2021-06-05 19:53:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19804 to 15084. [2021-06-05 19:53:36,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15084 states, 15083 states have (on average 3.872571769541868) internal successors, (58410), 15083 states have internal predecessors, (58410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15084 states to 15084 states and 58410 transitions. [2021-06-05 19:53:36,938 INFO L78 Accepts]: Start accepts. Automaton has 15084 states and 58410 transitions. Word has length 62 [2021-06-05 19:53:36,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:36,938 INFO L482 AbstractCegarLoop]: Abstraction has 15084 states and 58410 transitions. [2021-06-05 19:53:36,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 15084 states and 58410 transitions. [2021-06-05 19:53:36,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 19:53:36,964 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:36,964 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:36,964 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 19:53:36,964 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:36,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:36,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1753261216, now seen corresponding path program 1 times [2021-06-05 19:53:36,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:36,965 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247423097] [2021-06-05 19:53:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:37,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:37,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247423097] [2021-06-05 19:53:37,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247423097] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:37,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:37,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:53:37,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718265577] [2021-06-05 19:53:37,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:53:37,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:37,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:53:37,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:53:37,052 INFO L87 Difference]: Start difference. First operand 15084 states and 58410 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:37,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:37,233 INFO L93 Difference]: Finished difference Result 20124 states and 76962 transitions. [2021-06-05 19:53:37,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 19:53:37,234 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 19:53:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:37,265 INFO L225 Difference]: With dead ends: 20124 [2021-06-05 19:53:37,265 INFO L226 Difference]: Without dead ends: 9479 [2021-06-05 19:53:37,267 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 80.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:53:37,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2021-06-05 19:53:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 9479. [2021-06-05 19:53:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9479 states, 9478 states have (on average 3.8269677147077443) internal successors, (36272), 9478 states have internal predecessors, (36272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9479 states to 9479 states and 36272 transitions. [2021-06-05 19:53:37,501 INFO L78 Accepts]: Start accepts. Automaton has 9479 states and 36272 transitions. Word has length 63 [2021-06-05 19:53:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:37,502 INFO L482 AbstractCegarLoop]: Abstraction has 9479 states and 36272 transitions. [2021-06-05 19:53:37,502 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:37,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9479 states and 36272 transitions. [2021-06-05 19:53:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-06-05 19:53:37,518 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:37,518 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:37,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 19:53:37,518 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:37,519 INFO L82 PathProgramCache]: Analyzing trace with hash 261023848, now seen corresponding path program 2 times [2021-06-05 19:53:37,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:37,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472113223] [2021-06-05 19:53:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:37,601 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:37,601 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472113223] [2021-06-05 19:53:37,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472113223] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:37,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:37,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 19:53:37,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762421644] [2021-06-05 19:53:37,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 19:53:37,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 19:53:37,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 19:53:37,603 INFO L87 Difference]: Start difference. First operand 9479 states and 36272 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:37,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:37,780 INFO L93 Difference]: Finished difference Result 12330 states and 46729 transitions. [2021-06-05 19:53:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:53:37,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-06-05 19:53:37,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:37,803 INFO L225 Difference]: With dead ends: 12330 [2021-06-05 19:53:37,803 INFO L226 Difference]: Without dead ends: 9130 [2021-06-05 19:53:37,803 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 88.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 19:53:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9130 states. [2021-06-05 19:53:37,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9130 to 9130. [2021-06-05 19:53:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9130 states, 9129 states have (on average 3.8041406506736775) internal successors, (34728), 9129 states have internal predecessors, (34728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9130 states to 9130 states and 34728 transitions. [2021-06-05 19:53:38,006 INFO L78 Accepts]: Start accepts. Automaton has 9130 states and 34728 transitions. Word has length 63 [2021-06-05 19:53:38,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:38,007 INFO L482 AbstractCegarLoop]: Abstraction has 9130 states and 34728 transitions. [2021-06-05 19:53:38,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,007 INFO L276 IsEmpty]: Start isEmpty. Operand 9130 states and 34728 transitions. [2021-06-05 19:53:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-06-05 19:53:38,022 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:38,022 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:38,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 19:53:38,023 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1335715918, now seen corresponding path program 1 times [2021-06-05 19:53:38,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:38,024 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934657377] [2021-06-05 19:53:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:38,267 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-06-05 19:53:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:38,313 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:38,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934657377] [2021-06-05 19:53:38,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934657377] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:38,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:38,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 19:53:38,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777198843] [2021-06-05 19:53:38,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 19:53:38,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:38,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 19:53:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 19:53:38,316 INFO L87 Difference]: Start difference. First operand 9130 states and 34728 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:38,479 INFO L93 Difference]: Finished difference Result 10600 states and 39578 transitions. [2021-06-05 19:53:38,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 19:53:38,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-06-05 19:53:38,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:38,496 INFO L225 Difference]: With dead ends: 10600 [2021-06-05 19:53:38,497 INFO L226 Difference]: Without dead ends: 7660 [2021-06-05 19:53:38,497 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 98.0ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 19:53:38,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7660 states. [2021-06-05 19:53:38,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7660 to 7660. [2021-06-05 19:53:38,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7660 states, 7659 states have (on average 3.7181094137615878) internal successors, (28477), 7659 states have internal predecessors, (28477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7660 states to 7660 states and 28477 transitions. [2021-06-05 19:53:38,627 INFO L78 Accepts]: Start accepts. Automaton has 7660 states and 28477 transitions. Word has length 64 [2021-06-05 19:53:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:38,627 INFO L482 AbstractCegarLoop]: Abstraction has 7660 states and 28477 transitions. [2021-06-05 19:53:38,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand 7660 states and 28477 transitions. [2021-06-05 19:53:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 19:53:38,637 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:38,637 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:38,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 19:53:38,637 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:38,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:38,638 INFO L82 PathProgramCache]: Analyzing trace with hash 530155275, now seen corresponding path program 1 times [2021-06-05 19:53:38,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:38,638 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134786105] [2021-06-05 19:53:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:38,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:38,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:38,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134786105] [2021-06-05 19:53:38,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134786105] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:38,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:38,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:53:38,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588199461] [2021-06-05 19:53:38,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:53:38,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:38,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:53:38,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:53:38,751 INFO L87 Difference]: Start difference. First operand 7660 states and 28477 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:38,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:38,935 INFO L93 Difference]: Finished difference Result 7003 states and 25387 transitions. [2021-06-05 19:53:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 19:53:38,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-06-05 19:53:38,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:38,948 INFO L225 Difference]: With dead ends: 7003 [2021-06-05 19:53:38,948 INFO L226 Difference]: Without dead ends: 4591 [2021-06-05 19:53:38,948 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 127.0ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-06-05 19:53:39,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 4591. [2021-06-05 19:53:39,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4590 states have (on average 3.555773420479303) internal successors, (16321), 4590 states have internal predecessors, (16321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 16321 transitions. [2021-06-05 19:53:39,034 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 16321 transitions. Word has length 65 [2021-06-05 19:53:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:39,034 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 16321 transitions. [2021-06-05 19:53:39,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 16321 transitions. [2021-06-05 19:53:39,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 19:53:39,040 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:39,040 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:39,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 19:53:39,040 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:39,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:39,040 INFO L82 PathProgramCache]: Analyzing trace with hash -59477818, now seen corresponding path program 1 times [2021-06-05 19:53:39,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:39,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166319401] [2021-06-05 19:53:39,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:39,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:39,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166319401] [2021-06-05 19:53:39,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166319401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:39,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:39,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 19:53:39,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79181653] [2021-06-05 19:53:39,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 19:53:39,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:39,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 19:53:39,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-05 19:53:39,122 INFO L87 Difference]: Start difference. First operand 4591 states and 16321 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:39,235 INFO L93 Difference]: Finished difference Result 5944 states and 20931 transitions. [2021-06-05 19:53:39,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:53:39,236 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-05 19:53:39,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:39,248 INFO L225 Difference]: With dead ends: 5944 [2021-06-05 19:53:39,248 INFO L226 Difference]: Without dead ends: 4869 [2021-06-05 19:53:39,248 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 84.2ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-06-05 19:53:39,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2021-06-05 19:53:39,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4383. [2021-06-05 19:53:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 4382 states have (on average 3.543815609310817) internal successors, (15529), 4382 states have internal predecessors, (15529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 15529 transitions. [2021-06-05 19:53:39,338 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 15529 transitions. Word has length 67 [2021-06-05 19:53:39,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:39,338 INFO L482 AbstractCegarLoop]: Abstraction has 4383 states and 15529 transitions. [2021-06-05 19:53:39,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 15529 transitions. [2021-06-05 19:53:39,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-06-05 19:53:39,344 INFO L546 BasicCegarLoop]: Found error trace [2021-06-05 19:53:39,344 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 19:53:39,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 19:53:39,344 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 19:53:39,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 19:53:39,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1749123924, now seen corresponding path program 2 times [2021-06-05 19:53:39,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 19:53:39,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092441197] [2021-06-05 19:53:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 19:53:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 19:53:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 19:53:39,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 19:53:39,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092441197] [2021-06-05 19:53:39,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092441197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 19:53:39,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 19:53:39,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 19:53:39,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372727400] [2021-06-05 19:53:39,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 19:53:39,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 19:53:39,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 19:53:39,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 19:53:39,439 INFO L87 Difference]: Start difference. First operand 4383 states and 15529 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 19:53:39,555 INFO L93 Difference]: Finished difference Result 3087 states and 10696 transitions. [2021-06-05 19:53:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 19:53:39,555 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-06-05 19:53:39,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 19:53:39,556 INFO L225 Difference]: With dead ends: 3087 [2021-06-05 19:53:39,556 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 19:53:39,556 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 101.2ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-06-05 19:53:39,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 19:53:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 19:53:39,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 19:53:39,557 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2021-06-05 19:53:39,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 19:53:39,557 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 19:53:39,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 19:53:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 19:53:39,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 19:53:39,557 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 19:53:39,559 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 19:53:39,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 07:53:39 BasicIcfg [2021-06-05 19:53:39,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 19:53:39,562 INFO L168 Benchmark]: Toolchain (without parser) took 23074.96 ms. Allocated memory was 360.7 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 323.1 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,562 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 360.7 MB. Free memory was 341.4 MB in the beginning and 341.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 19:53:39,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.83 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 321.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 360.7 MB. Free memory was 321.4 MB in the beginning and 319.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,563 INFO L168 Benchmark]: Boogie Preprocessor took 44.31 ms. Allocated memory is still 360.7 MB. Free memory was 319.3 MB in the beginning and 317.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,563 INFO L168 Benchmark]: RCFGBuilder took 478.23 ms. Allocated memory is still 360.7 MB. Free memory was 317.2 MB in the beginning and 289.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,563 INFO L168 Benchmark]: TraceAbstraction took 21912.42 ms. Allocated memory was 360.7 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 289.9 MB in the beginning and 9.2 GB in the end (delta: -9.0 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.0 GB. [2021-06-05 19:53:39,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 360.7 MB. Free memory was 341.4 MB in the beginning and 341.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 569.83 ms. Allocated memory is still 360.7 MB. Free memory was 322.9 MB in the beginning and 321.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.14 ms. Allocated memory is still 360.7 MB. Free memory was 321.4 MB in the beginning and 319.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.31 ms. Allocated memory is still 360.7 MB. Free memory was 319.3 MB in the beginning and 317.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 478.23 ms. Allocated memory is still 360.7 MB. Free memory was 317.2 MB in the beginning and 289.9 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 21912.42 ms. Allocated memory was 360.7 MB in the beginning and 11.3 GB in the end (delta: 10.9 GB). Free memory was 289.9 MB in the beginning and 9.2 GB in the end (delta: -9.0 GB). Peak memory consumption was 2.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 126 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21778.8ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 549.9ms, AutomataDifference: 6728.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5480.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1609 SDtfs, 2860 SDslu, 5798 SDs, 0 SdLazy, 569 SolverSat, 143 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 783.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1903.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51814occurred in iteration=0, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 6833.0ms AutomataMinimizationTime, 12 MinimizatonAttempts, 29870 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 37.1ms SsaConstructionTime, 234.1ms SatisfiabilityAnalysisTime, 1699.6ms InterpolantComputationTime, 745 NumberOfCodeBlocks, 745 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 733 ConstructedInterpolants, 0 QuantifiedInterpolants, 3271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...